Ubushushu ngaphakathiisikhunta senalitiayilingani kwiindawo ezahlukeneyo, nto leyo enxulumene nexesha elikwimijikelo yokufakwa kwenaliti. Umsebenzi womatshini wobushushu besikhunta kukugcina ubushushu buhlala buhleli phakathi kwemizuzu emi-2 kunye ne-2max, oko kuthetha ukuthintela umahluko wobushushu ekutshintsheni nasekuhleni ngexesha lenkqubo yemveliso okanye isithuba. Ezi ndlela zilandelayo zokulawula zifanelekile ukulawula ubushushu besikhunta: Ukulawula ubushushu bolwelo yindlela esetyenziswa kakhulu, kwaye ukuchaneka kokulawula kunokuhlangabezana neemfuno zeemeko ezininzi. Ukusebenzisa le ndlela yokulawula, ubushushu obuboniswayo kwisilawuli abuhambelani nobushushu besikhunta; ubushushu besikhunta buyatshintshatshintsha kakhulu, kuba izinto ezishushu ezichaphazela isikhunta azikalinganiswa ngokuthe ngqo kwaye zihlawulelwe kwezi zinto kubandakanya utshintsho kumjikelo wokufakwa kwenaliti, isantya sokufakwa kwenaliti, ubushushu bokunyibilika kunye nobushushu begumbi. Okwesibini kukulawula ngokuthe ngqo ubushushu besikhunta. Le ndlela kukufaka isensor yobushushu ngaphakathi kwisikhunta, esetyenziswa kuphela xa ukuchaneka kokulawula ubushushu besikhunta kuphezulu. Iimpawu eziphambili zolawulo lobushushu besikhunta ziquka: ubushushu obubekwe yisilawuli buhambelana nobushushu besikhunta; izinto ezishushu ezichaphazela isikhunta zinokulinganiswa ngokuthe ngqo kwaye zihlawulelwe. Kwiimeko eziqhelekileyo, ukuzinza kobushushu besikhunta kungcono kunokulawula ubushushu bolwelo. Ukongeza, ulawulo lobushushu besikhunta lunokuphindaphindwa ngcono kulawulo lwenkqubo yemveliso. Okwesithathu kukulawula ikhunta. Ulawulo oludibeneyo luyindibaniselwano yeendlela ezingentla, lunokulawula ubushushu bolwelo kunye nekhunta ngaxeshanye. Kulawulo oludibeneyo, indawo yesenzi sobushushu kwisikhunta ibaluleke kakhulu. Xa ubeka isenzi sobushushu, kufuneka kuqwalaselwe imo, ulwakhiwo, kunye nendawo yetshaneli yokupholisa. Ukongeza, isenzi sobushushu kufuneka sibekwe kwindawo edlala indima ebalulekileyo kumgangatho weendawo ezibunjiweyo ngenaliti. Zininzi iindlela zokuqhagamshela umatshini omnye okanye ngaphezulu wobushushu besikhunta kumlawuli womatshini wokubumba ngenaliti. Kungcono ukusebenzisa ujongano lwedijithali ngokubhekiselele ekusebenzeni, ukuthembeka kunye nokuchasana nokuphazamiseka.

Ibhalansi yobushushuisikhunta senalitiIlawula ukuhanjiswa kobushushu phakathi komatshini wokubumba injection kwaye i-mold yeyona nto iphambili ekuvelisweni kweendawo ezibunjiweyo nge-injection. Ngaphakathi kwi-mold, ubushushu obuziswa yiplastiki (njenge-thermoplastic) budluliselwa kwizinto kunye nentsimbi ye-mold nge-thermal radiation, kwaye budluliselwe kwi-heat transfer fluid nge-convection. Ukongeza, ubushushu budluliselwa kwi-atmosphere kwaye isiseko se-mold nge-thermal radiation. Ubushushu obufunxwa yi-heat transfer fluid bususwa ngumatshini wobushushu be-mold. Ibhalansi yobushushu ye-mold ingachazwa ngolu hlobo: P=Pm-Ps. Apho i-P bubushushu obuthathwa ngumatshini wobushushu be-mold; i-Pm bubushushu obungeniswa yiplastiki; i-Ps bubushushu obukhutshwa yi-mold emoyeni. Injongo yokulawula ubushushu be-mold kunye nempembelelo yobushushu be-mold kwiindawo ezibunjiweyo nge-injection. Kwinkqubo yokubumba injection, injongo ephambili yokulawula ubushushu be-mold kukufudumeza i-mold kubushushu obusebenzayo, kunye nokugcina ubushushu be-mold buhlala buhleli kubushushu obusebenzayo. Ukuba la manqaku mabini angentla ayaphumelela, ixesha lomjikelo linokulungiswa ukuqinisekisa umgangatho ophezulu ozinzileyo weendawo ezibunjiweyo nge-injection. Ubushushu bomngundo buya kuchaphazela umgangatho womphezulu, ukunyibilika, ukushwabana, umjikelo wokufaka kunye nokuguquka. Ubushushu bomngundo obugqithisileyo okanye obunganelanga buya kuba nemiphumo eyahlukileyo kwizinto ezahlukeneyo. Kwi-thermoplastics, ubushushu bomngundo obuphezulu buya kuphucula umgangatho womphezulu kunye nokushwabana, kodwa buya kwandisa ixesha lokupholisa kunye nomjikelo wokufaka. Ubushushu bomngundo obuphantsi buya kunciphisa ukushwabana kwi-mold, kodwa buya kwandisa ukushwabana kwenxalenye eboyiweyo ye-injection emva kokudilizwa. Kwiiplastiki ze-thermoset, ubushushu bomngundo obuphezulu budla ngokunciphisa ixesha lomjikelo, kwaye ixesha limiselwa lixesha elifunekayo ukuze inxalenye iphole. Ukongeza, ekucutshungulweni kweeplastiki, ubushushu bomngundo obuphezulu buya kunciphisa ixesha lokufaka iplastiki kwaye bunciphise inani lemijikelo.